Patents by Inventor Kenneth T. Lang

Kenneth T. Lang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Optical radiation limiter
    Patent number: 4093353
    Abstract: An optical limiter includes two bandpass filters whose narrow passbands are at least partially overlapping at low light levels. One of the two filters is well heat-sunk while the other is not. When the input light level exceeds a threshold level, heating causes the passband of the thermally isolated filter to shift relative to the passband of the heat-sunk filter. High level light self-limits or attenuates itself by virtue of the filter passband mismatch that occurs.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: June 6, 1978
    Assignee: Honeywell Inc.
    Inventor: Kenneth T. Lang